Thanks. Yes I was aware that editing with PokeGen had to be done on the PC and not elsewhere. I was considering purchasing the SC-DSTWO but was unsure if it was able to support the DSi enhanced games like Black, White, Black 2, and White 2 (planning on editing with either Black 2 or White 2).
I would be planning on using the flash card on the DSi XL so I'm guessing that I don't have to worry as much about errors due to the updates the DSi XL has gotten?